Re: gt air filter
First post so here goes.
Working from underneath the car.
You need to remove the cover under the engine (remove the small black torque fasteners from the perimeter of the cover plus the 3 or 4 10mm bolts). I did this by jacking the car up and raising it on axle stands. You should now see the bottom of the filter housing up near the passenger side near the radiator. Lift the housing up and off its mount then simply unfasten the clips that hold the housing together.